Submission #1238593

#	Time	Username	Problem	Language	Result	Execution time	Memory
1238593		Jer	Infinite Race (EGOI24_infiniterace2)	C++20	100 / 100	72 ms	10568 KiB

Main

#include <bits/stdc++.h>

using namespace std;

const int MAXN = 2e5 + 5;
int laps[MAXN];

int n, q;

int main()
{
    scanf("%d%d", &n, &q);
    fill(laps, laps + n, 0);

    map<int, int> laps;
    int a, res = 0;
    while (q--)
    {
        scanf("%d", &a);
        if (a > 0)
        {
            if (laps[a] == 1)
                res++, laps.clear();
            laps[a] += 1;
        }
        else
            laps[-a] = 0;
    }

    printf("%d\n", res);

    return 0;
}

Compilation message (stderr)

Main.cpp: In function 'int main()':
Main.cpp:12:10: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   12 |     scanf("%d%d", &n, &q);
      |     ~~~~~^~~~~~~~~~~~~~~~
Main.cpp:19:14: warning: ignoring return value of 'int scanf(const char*, ...)' declared with attribute 'warn_unused_result' [-Wunused-result]
   19 |         scanf("%d", &a);
      |         ~~~~~^~~~~~~~~~

• Subtask 1: 29 / 29
• Subtask 2: 34 / 34
• Subtask 3: 22 / 22
• Subtask 4: 15 / 15